against

About 298.08 uses per million words.

Meaning

preposition In a contrary direction to.
It is hard work to swim against the current.
preposition In physical opposition to; in collision with.
The rain pounds against the window.
preposition In physical contact with, so as to abut or be supported by.
The ladder was leaning against the wall.
preposition Close to, alongside.
A row of trees stood against a fence.
preposition In front of; before (a background).
The giant was silhouetted against the door.
preposition In contrast or comparison with.
He stands out against his classmates.
preposition In competition with, versus.
The Tigers will play against the Bears this weekend.
preposition Contrary to; in conflict with.
Doing this is against my principles.